EP0639634B1 - Produits colloidaux renfermant du calcium, et/ou du magnésium, ainsi que du soufre et de l'azote, leur préparation et leur utilisation notamment comme additifs dans les huiles lubrifiantes - Google Patents
Produits colloidaux renfermant du calcium, et/ou du magnésium, ainsi que du soufre et de l'azote, leur préparation et leur utilisation notamment comme additifs dans les huiles lubrifiantes Download PDFInfo
- Publication number
- EP0639634B1 EP0639634B1 EP94401783A EP94401783A EP0639634B1 EP 0639634 B1 EP0639634 B1 EP 0639634B1 EP 94401783 A EP94401783 A EP 94401783A EP 94401783 A EP94401783 A EP 94401783A EP 0639634 B1 EP0639634 B1 EP 0639634B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- bis
- thiadiazole
- diyl
- calcium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- PZUYNSXHJAPTGO-UHFFFAOYSA-N CCSC(C)(C)NNC(S)SC Chemical compound CCSC(C)(C)NNC(S)SC PZUYNSXHJAPTGO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
- C10M159/22—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing phenol radicals
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
- C10M159/24—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing sulfonic radicals
Definitions
- the present invention relates to new colloidal products containing calcium and / or magnesium, as well as sulfur and nitrogen, their preparation and their use in particular as additives in lubricating oils.
- Overbased detergent additives have been known for a long time. Some of them and their preparation have been described for example in US patents 2,865,956, 3,150,088, 3,537,996, 3,830,739, 3,865,737, 3,953,519, 3,966,621, 4,148,740 and 4,505 .830 and French patent 2,101,813.
- overbasing reaction which in particular use preformed carbonates from alkoxides and CO 2 before being brought into contact with the alkaline or alkaline earth salt of the acid compound; they are described in particular in US patents 2,956,018, 3,932,289 and 4,104,180.
- French patent FR-B-2645168 describes thiophosphorus compounds obtained by reaction of a sodium or calcium sulfonate overbased with sodium or calcium carbonate, with a phosphorus sulfide, in general P 4 S 10 , this reaction being optionally followed by a reaction with an active hydrogen compound, which could be water, methanol, isopropanol, a phenol, acetic acid, a dialkylphosphite, boric acid, phosphoric acid , ammonia, an amide, dimercaptothiadiazole, or one of its derivatives.
- the compounds obtained, made soluble in a hydrocarbon medium by micellization can be used as antiwear and extreme pressure additives in lubricating oils.
- French patent FR-B-2681872 describes and claims products colloids containing boron and phosphorus, obtained by a process in which prepares an overbased borated alkaline or alkaline earth sulfonate; we react on this produces a phosphorus sulfide and the resulting product is separated. These products are also used as antiwear and extreme pressure additives in oils and lubricating greases.
- an overbased detergent compound such as a sulfonate, a phenate, salicylate or alkaline or alkaline earth naphthenate overbased by a carbonate or an alkali or alkaline earth hydroxide
- an overbased detergent compound such as a sulfonate, a phenate, salicylate or alkaline or alkaline earth naphthenate overbased by a carbonate or an alkali or alkaline earth hydroxide
- each number a is 1 or 2
- x and z are each 1 or 2
- y is zero or 1.
- the reaction described above can be carried out in basic medium, for example, in presence of an alkali metal hydroxide (in particular soda or potash), or ammonium hydroxide.
- an alkali metal hydroxide in particular soda or potash
- ammonium hydroxide At the end of the reaction, neutralization in a strong acid medium, such as for example hydrochloric acid, sulfuric acid or phosphoric acid will generally be performed.
- the dicarboxylic acid obtained corresponds to the following general formula: which corresponds to formula (I) in which a would be replaced by c + 2 and x and z would each be equal to 1.
- TBN basicity reserve
- the preparation of the colloidal products according to the invention is generally carried out within an organic solvent which may more particularly consist of a hydrocarbon aliphatic (such as hexane, heptane, octane or nonane), cycloaliphatic hydrocarbon (such as, for example, cyclohexane), a hydrocarbon aromatic (such as toluene or xylene), possibly combined with tetrahydrofuran or methanol, used as co-solvents.
- a hydrocarbon aliphatic such as hexane, heptane, octane or nonane
- cycloaliphatic hydrocarbon such as, for example, cyclohexane
- a hydrocarbon aromatic such as toluene or xylene
- the acids and additional reagents considered may be for example the acids metaboric or orthoboric, sulfur-containing carboxylic acids such as those described in French patent FR-B-2689031 already cited above.
- the colloidal products obtained are stable, soluble in mineral lubricants and synthetic and are characterized by their nitrogen, sulfur and possibly content boron and their calcium and / or magnesium content.
- Their sulfur content in the active ingredient can be up to 30% by mass and the nitrogen content up to 15% by mass.
- Their calcium content in the active ingredient can range for example up to 30% by mass and the magnesium content up to 20% by mass.
- the colloidal compounds containing sulfur and nitrogen according to the invention are excellent antiwear and extreme pressure additives.
- Antiwear additives and extreme pressure are incorporated in the lubricants when these are intended for lubricate organs subjected to significant mechanical stresses, such as distribution in heat engines, gears, bearings or stops. Significant mechanical stresses also appear during metal machining, whether cutting or forming.
- colloidal compounds containing sulfur and nitrogen according to the invention have great thermal stability, which allows them to be used in lubricants subjected to service at very high temperatures up to 160 ° C, as in some severe engine housings, in very transmissions loaded or cutting metal at high speed.
- the products of the invention as additives for lubricating oils and fats, they can be incorporated into them, for example at a concentration of active material from 0.1 to 25% by mass, preferably from 1 to 15% by mass.
- Lubricating oils also generally contain one or more several other additives such as additives improving the viscosity index, pour point lowering additives, antioxidants, rust inhibitors, anticorrosion additives of copper, detergents, antiwear, defoamers, dispersants, friction reducers, with which the products of the invention are compatible.
- Examples A to F the synthesis of various acids usable in the preparation of the products according to the invention described in Examples 1 to 11.
- Examples 12 and 13 describe tests carried out on some of these products.
- an overbased alkaline reserve calcium sulfonate (TBN) equivalent to 500 are introduced into a reactor equipped with an agitator, a condenser, a Dean & Stark separator and a dropping funnel.
- the medium is brought to 90 ° C. and then a solution of 5.93 g (0.0223 mole or 0.0446 acid equivalent) of 3.3 'acid is introduced over 1 hour using the ampoule.
- an overbased alkaline reserve calcium sulfonate (TBN) equivalent to 500 are introduced into a reactor equipped with an agitator, a condenser, a Dean & Stark separator and a dropping funnel.
- the medium is brought to 90 ° C. and then a solution of 6.55 g (0.0223 mole or 0.0446 acid equivalent) of 4.4 'acid is introduced over 1 hour using the ampoule.
- an overbased alkaline reserve calcium sulfonate (TBN) equivalent to 500 are introduced into a reactor equipped with an agitator, a condenser, a Dean & Stark separator and a dropping funnel.
- an overbased alkaline reserve calcium sulfonate (TBN) equivalent to 500 are introduced into a reactor equipped with an agitator, a condenser, a Dean & Stark separator and a dropping funnel.
- an overbased alkaline reserve magnesium sulfonate (TBN) equivalent to 400 are introduced into a reactor equipped with a stirrer, a condenser, a Dean & Stark separator and a dropping funnel.
- the medium is brought to 90 ° C. and then a solution of 6.3 g (0.0237 mol or 0.0474 acid equivalent) of 3.3 ′ acid is introduced over the course of one hour using the bulb.
- an overbased alkaline reserve calcium sulfonate (TBN) equivalent to 500 are introduced into a reactor equipped with an agitator, a condenser, a Dean & Stark separator and a dropping funnel.
- the medium is brought to 130 ° C. and then a solution of 10.8 g of an alkylarylsulfonic acid with a molar mass equivalent to 700 (or 0.0154 acid equivalent) in 100 cm 3 of xylene is introduced over 30 minutes at this temperature.
- an overbased alkaline reserve calcium sulfonate (TBN) equivalent to 500 are introduced into a reactor equipped with an agitator, a condenser, a Dean & Stark separator and a dropping funnel.
- the medium is brought to 130 ° C. and then a solution of 10.8 g of an alkylarylsulfonic acid with a molar mass equivalent to 700 (or 0.0154 acid equivalent) in 100 cm 3 of xylene is introduced over 30 minutes at this temperature.
- an overbased alkaline reserve calcium sulfonate (TBN) equivalent to 500 are introduced into a reactor equipped with an agitator, a condenser, a Dean & Stark separator and a dropping funnel.
- the medium is brought to 130 ° C. and then a solution of 10.8 g of an alkylarylsulfonic acid with a molar mass equivalent to 700 (ie 0.0154 acid equivalent) in 100 cm 3 of xylene is introduced over 30 minutes at this temperature.
- an overbased alkaline reserve calcium sulfonate (TBN) equivalent to 500 are introduced into a reactor equipped with an agitator, a condenser, a Dean & Stark separator and a dropping funnel.
- the medium is brought to 130 ° C. and then a solution of 63.4 g of an alkylarylsulfonic acid with a molar mass equivalent to 700 (ie 0.09 acid equivalent) in 100 cm 3 of xylene is introduced over 30 minutes at this temperature.
- an overbased alkaline reserve calcium sulfonate (TBN) equivalent to 500 are introduced into a reactor equipped with an agitator, a condenser, a Dean & Stark separator and a dropping funnel.
- 4.11 g of orthoboric acid (0.066 mol) dispersed in 30 cm 3 of methanol are introduced and then the medium is brought to reflux for 1 hour. After azeotropic distillation of methanol and of the reaction water formed, the medium is cooled to 90 ° C.
- an overbased alkaline reserve calcium sulfonate (TBN) equivalent to 500 are introduced into a reactor equipped with an agitator, a condenser, a Dean & Stark separator and a dropping funnel.
- the medium is brought to 90 ° C. and then a solution of 5.98 g (0.0167 mole or 0.0334 acid equivalent) of 5.5 'acid is introduced over 1 hour using the ampoule.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Colloid Chemistry (AREA)
- Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
Description
Les acides dicarboxyliques mis en jeu pour la préparation des produits colloïdaux de l'invention peuvent être obtenus notamment par réaction d'un composé à groupement dimercaptothiadiazole de formule générale : avec au moins un acide monocarboxylique substitué de formule générale :
- l'acide 3,3' -(1,3,4 - thiadiazole -2,5 - diyl) bis (3-thiapropanoïque) ;
- l'acide 4,4' -(1,3,4 - thiadiazole -2,5 - diyl) bis (4-thiabutanoïque) ;
- l'acide 4,4' -(1,3,4 - thiadiazole -2,5 - diyl) bis (3,4-dithiabutanoïque) ;
- l'acide 5,5' -(1,3,4 - thiadiazode -2,5 -diyl) bis (4,5-dithiapentanoïque)
- l'acide bis (3-(5 thio-1,3,4-thiadiazole-2-yl)-3-thiapropanoïque) ;
- et l'acide bis (4-(5 thio-1,3,4-thiadiazole-2-yl)-4-thiabutanoïque).
Ca= 13,1 % S= 4,9% N= 0,8%
Ca= 12,8 % S= 5,5 % N= 0,8 %
Ca= 8,5 % S = 5,1 % N= 1,1 %
Ca= 8,6% S= 3,1 % N= 0,7 %
Mg= 4,4 % S= 3,4 % N= 0,7
Ca= 8,5 % S= 5,1 % N= 1,1 %
Ca= 7,6 % S= 4,9 % N= 1,1 %
Ca= 7,2 % S= 4,1 % N= 1,0 %
Ca= 3,7 % S= 8,7 % N= 2,3
l'évaporation du xylène sous pression réduite. On recueille un produit liquide et limpide dont la composition en masse est la suivante :
Ca= 7,8 % S=2,6 % N=0,6 % B=0,5%
Ca= 8,0 % S= 3,5 % N= 0,6 %
Examen des produits par dialyse | |||||||||
Produit de I'exemple | Produit brut (% masse) | Concentrat | Dialysat | ||||||
N° | Ca % | S % | N % | % | S % | N % | % | S % | N % |
1 | 13,1 | 4,9 | 0,8 | 51 | 9,1 | 1,5 | 49 | 0,4 | 0 |
2 | 12,8 | 5,5 | 0,7 | 48 | 10,7 | 1,5 | 52 | 0,5 | 0 |
3 | 8,5 | 5,1 | 1,1 | 35,9 | 10,1 | 2,7 | 64,1 | 0,5 | 0 |
4 | 8,6 | 3,1 | 0,7 | 32,7 | 8,6 | 1,9 | 67,3 | 0,5 | 0 |
5 | 4,4 (Mg) | 3,4 | 0,7 | 31,7 | 10,1 | 2,0 | 68,3 | 0,5 | 0 |
6 | 8,3 | 5,1 | 1,1 | 42,2 | 10,9 | 2,1 | 57,8 | 0,5 | 0 |
7 | 7,6 | 4,9 | 1,1 | 41 | 9,9 | 2,4 | 59 | 0,4 | 0 |
10 | 7,8 | 2,6 | 0,6 | 34,8 | 7,1 | 1,7 | 65,2 | 0.5 | 0 |
Claims (7)
- Produit colloïdal contenant du calcium et/ou du magnésium ainsi que du soufre et de l'azote, caractérisé en ce qu'il est exempt de phosphore et en ce qu'il est obtenu par neutralisation au moins partielle de la réserve de basicité d'un sulfonate et/ou phénate et/ou salicylate surbasique chargé de carbonate de calcium et/ou de magnésium dispersé au sein de micelles, au moyen d'au moins un acide dicarboxylique répondant à la formule générale : dans laquelle les symboles a représentent chacun indépendamment l'un de l'autre un nombre entier de 1 à 8, x et z représentent chacun séparément un nombre de 1 à 4, y représente un nombre entier de 0 à 4 et n prend la valeur 1 ou 2.
- Produit colloïdal selon la revendication 1 caractérisé en ce que dans la formule (I), chaque nombre a est 1 ou 2, x et z sont chacun 1 ou 2 et y est zéro ou 1.
- Produit colloïdal selon l'une des revendications 1 et 2, caractérisé en ce que l'acide dicarboxylique mis en jeu dans sa préparation est choisi parmi :l'acide 3,3' -(1,3,4 - thiadiazole -2,5 - diyl) bis (3-thiapropanoïque);l'acide 4,4' -(1,3,4 - thiadiazole -2,5 - diyl) bis (4-thiabutanoïque);l'acide 4,4' -(1,3,4 - thiadiazole -2,5 - diyl) bis (3,4-dithiabutanoïque);l'acide 5,5' -(1,3,4 - thiadiazole -2,5 -diyl) bis (4,5-dithiapentanoïque);l'acide bis (3-(5 thio-1,3,4-thiadiazole-2-yl)-3-thiapropanoïque);et l'acide bis (4-(5 thio-1,3,4-thiadiazole-2-yl) (4-thiabutanoïque).
- Produit colloïdal selon l'un des revendications 1 à 3, caractérisé en ce que le composé surbasique, sulfonate et/ou phénate et/ou salicylate, de départ présente une réserve de basicité correspondant à un indice total de base (TBN) allant jusqu'à 600 mg de potasse par gramme.
- Produit colloïdal selon l'une des revendications 1 à 4, caractérisé en ce qu'il présente une teneur en soufre allant jusqu'à 30 % en masse et une teneur en azote allant jusqu'à 15 % en masse, exprimées par rapport à la masse de matière active.
- Produit colloïdal selon l'une des revendications 1 à 5 caractérisé en ce qu'il présente une teneur en calcium allant jusqu'à 30 % en masse et/ou une teneur en magnésium allant jusqu'à 15 % en masse, exprimées par rapport à la masse de matière active.
- Composition d'huile ou de graisse lubrifiante caractérisée en ce qu'elle comprend une proportion majeure d'huile ou de graisse lubrifiante et une proportion en masse de matière active de 0,1 à 25 % en masse d'au moins un produit selon l'une des revendications 1 à 6.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9310128A FR2709076B1 (fr) | 1993-08-18 | 1993-08-18 | Produits colloïdaux renfermant du calcium, et/ou du magnésium, ainsi que du souffre et de l'azote, leur préparation et leur utilisation notamment comme additifs dans les huiles lubrifiantes. |
FR9310128 | 1993-08-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0639634A1 EP0639634A1 (fr) | 1995-02-22 |
EP0639634B1 true EP0639634B1 (fr) | 1999-12-29 |
Family
ID=9450315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94401783A Expired - Lifetime EP0639634B1 (fr) | 1993-08-18 | 1994-08-03 | Produits colloidaux renfermant du calcium, et/ou du magnésium, ainsi que du soufre et de l'azote, leur préparation et leur utilisation notamment comme additifs dans les huiles lubrifiantes |
Country Status (8)
Country | Link |
---|---|
US (1) | US5462682A (fr) |
EP (1) | EP0639634B1 (fr) |
JP (1) | JPH0780280A (fr) |
AT (1) | ATE188241T1 (fr) |
DE (1) | DE69422348T2 (fr) |
ES (1) | ES2142916T3 (fr) |
FR (1) | FR2709076B1 (fr) |
PT (1) | PT639634E (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2716891B1 (fr) * | 1994-03-03 | 1996-06-14 | Inst Francais Du Petrole | Produits colloïdaux contenant du calcium, du baryum et/ou du magnésium ainsi que du bismuth, modifiés par action d'acides carboxyliques contenant du soufre et éventuellement de l'azote. |
US5585029A (en) * | 1995-12-22 | 1996-12-17 | Exxon Research And Engineering Company | High load-carrying turbo oils containing amine phosphate and 2-alkylthio-1,3,4-thiadiazole-5-alkanoic acid |
US5731274A (en) * | 1996-09-11 | 1998-03-24 | Exxon Research And Engineering Company | Lithium complex grease with extended lubrication life |
GB9900035D0 (en) * | 1999-01-04 | 1999-02-24 | Infineum Uk Ltd | Overbased metal detergents |
US20050061734A1 (en) * | 2003-09-22 | 2005-03-24 | Alltrista Zinc Products, L.P. | Anti-corrosive engine oil system components |
US20050065042A1 (en) * | 2003-09-22 | 2005-03-24 | Alltrista Zinc Products, L.P., An Indiana Limited Partnership | Anti-corrosive engine oil system components |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5256319A (en) * | 1989-03-30 | 1993-10-26 | Institut Francais Du Petrole | New thiophosphoretted compounds, their preparation and their use as additives for lubricants |
FR2645168B1 (fr) * | 1989-03-30 | 1993-02-05 | Inst Francais Du Petrole | Nouveaux composes thiophosphores, leur preparation et leur utilisation comme additifs pour lubrifiants |
FR2681872B1 (fr) * | 1991-09-30 | 1993-12-24 | Inst Francais Du Petrole | Produits collouidaux renfermant du bore et du phosphore, leur preparation et leur utilisation comme additifs pour lubrifiants. |
FR2689031B1 (fr) * | 1992-03-26 | 1994-05-27 | Inst Francais Du Petrole | Produits collouidaux surbases, contenant du soufre organique et leur utilisation comme additifs detergents a action antiusure et extreme-pression dans les huiles lubrifiantes. |
-
1993
- 1993-08-18 FR FR9310128A patent/FR2709076B1/fr not_active Expired - Fee Related
-
1994
- 1994-08-03 DE DE69422348T patent/DE69422348T2/de not_active Expired - Fee Related
- 1994-08-03 EP EP94401783A patent/EP0639634B1/fr not_active Expired - Lifetime
- 1994-08-03 ES ES94401783T patent/ES2142916T3/es not_active Expired - Lifetime
- 1994-08-03 PT PT94401783T patent/PT639634E/pt unknown
- 1994-08-03 AT AT94401783T patent/ATE188241T1/de not_active IP Right Cessation
- 1994-08-17 JP JP6192654A patent/JPH0780280A/ja active Pending
- 1994-08-18 US US08/292,004 patent/US5462682A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2709076B1 (fr) | 1995-10-06 |
ATE188241T1 (de) | 2000-01-15 |
US5462682A (en) | 1995-10-31 |
PT639634E (pt) | 2000-04-28 |
JPH0780280A (ja) | 1995-03-28 |
FR2709076A1 (fr) | 1995-02-24 |
EP0639634A1 (fr) | 1995-02-22 |
DE69422348D1 (de) | 2000-02-03 |
ES2142916T3 (es) | 2000-05-01 |
DE69422348T2 (de) | 2000-06-08 |
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